ML20247N730

Forwards Safety Evaluation Concluding That Isolation Devices Properly Tested & Acceptable for Use in Spds,Per Generic Ltr 82-33.Approval Subj to Confirmation That Failure During Testing Attributable to Defective Component

ML20247N730
Person / Time
Site:	Arkansas Nuclear
Issue date:	07/31/1989
From:	Craig Harbuck, Polusny C Office of Nuclear Reactor Regulation
To:	Tison Campbell ARKANSAS POWER & LIGHT CO.
Shared Package
ML20247N736	List: ML20247N730 ML20247N745
References
GL-82-33, TAC-71251, TAC-71252, NUDOCS 8908030134
Download: ML20247N730 (4)

Text

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NUCLEAR REGtJLATORY COMMISSION

. WASHINGTON, D. C. 2D555 July 31,1989

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Docket Nos. 50-313 and 50-368 Mr. T. Gene Campbell Vice President, Nuclear Arkansas Power and Light Company Post Office Box 551 Little Rock, Arkansas 72203

SUBJECT:

ARKANSAS NUCLEAR ONE, UNITS 1 & 2 SAFETY EVALUATION OF THE SAFETY PARAMETER DISPLAY SYSTEM (SPDS) ISOLATION DEVICF TEST RESULTS (TAC NOS. 71251 AND 71252)

Completion of the staff's review of the safety parameter display system design for Arkansas Nuclear One, Units 1. and 2 (ANO-1&2) had been delayed in the past because of a. lack of information to support the adequacy of the electrical isolation devices. The SPDS review TAC Nos. (51219 and 51220) were closed on December 13, 1988 based on your commitment to supply isolation device test results by February 28, 1989. You fulfilled this commitment and this letter

. transmits our safety evaluation (SE) of this aspect of your SPDS design.

Regarding your SPDS as a whole, the staff's previous plans to issue an SE for ANO-1&2 was superceded by Generic Letter 89-06. Therefore, no additional AND-1&2 plant-specific SPDS SEs will be issued. Comments pertaining to your July 17, 1989 " Task Action Plan Item 1.D.2 -

Safety Parameter response to Generic Display System Letter

- 10 CFR 89-06(f)," will be provided separately 50.54 (TAC Nos. 73626 and 73627).

We have completed our review of the test results for the SPDS Isolation Devices which you submitted in your letter dated February 28, 1989. Based on our review of the information provided, we have concluded that the isolation devices were properly tested and are acceptable for use in the AN0 SPDS.

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Mr.'T. Gene Campbell This acceptance is based upon your verbal commitment made by telephone on April 19, I!IB9 to inform us in writing of the results of the independent analysis to be performed to further support your conclusion that the failure which occurred during testing is attributable to a defective component rather than an inherent design deficiency.

Sincerely,

/Sl C. Craig Harbuck, Project Manager '

Project Directorate - IV Division of Reactor Projects - III, IV, V and Special Projects Office of Nuclear Reactor Regulation

/s/

Chester Poslusny, Jr., Project Manager Project Directorate - IV Division of Reactor Projects - III, IV, V and Special Projects Office of Nuclear Reactor Regulation

Enclosure:

As stated cc w/ enclosure:

See next page FREDERICK J. HEBDON 01 DISTRIBUTION

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's Mr. T. Gene Campbell [ This acceptance is based upon your verbal comitment made by telephone on April 19, 1989 to inform us in. writing of the results of the independent analysis to be performed to further support your conclusion that the failure which occurred during testing is attributable to a defective component rather than an inherent design deficiency.

Sincerely,

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C. Craig Harbuck, Project Manager Project Directorate - IV Division of Reactor Projects' III,-

IV, V and Special Projects Office of Nuclear Reactor Regulation sy& 20Lo $-

Chester Poslusny, ., Project Manager Project Directorate - IV Division of Reactor Projects - III, IV, V and Special Projects-Office of Nuclear Reactor Regulation

Enclosure:

As stated cc w/ enclosure:

See next page

• • . i Mr. T. Gene Campbell Arkansas Nuclear One Arkansas Power & Light Company Unit Nos. I and 2 CC:

Mr. Early Ewing, General Manager Mr. Charles B. Brinkman, Manager Technical Support and Assessment Washington Nuclear Operations Arkansas Nuclear One Combustion Engineering, Inc.

P. O. Box 608 12300 Twinbrook Parkway, Suite 330 Russellville, Arkansas 72801 Rockville, Maryland 20852 Mr. Niel Carns, Director Nuclear Operations Honorable Joe W. Phillips Arkansas Nuclear One County Judge of Pope County P. O. Box 608 Pope County Courthouse Russellville, Arkansas 72801 Russellville, Arkansas 72801 Nicholas S. Reynolds, Esq.

Bishop, Cook, Purcell

& Reynolds 1400 L Street, N.W.

Washington, D.C. 20005-3502 Regional Administrator, Region IV U.S. Nuclear Regulatory Comission Office of Executive Director for Operations 611 Ryan Plaza Drive, Suite 1000 Arlington, Texas 76011 Senior Resident Inspector U.S. Nuclear Regulatory Comission 1 Nuclear Plant Road Russellville, Arkansas 72801 Ms. Greta Dicus, Director Division of Environmental Health Protection Arkansas Department of Health 4815 West Markan Street Little Rock, Arkansas 72201 Mr. Robert B. Borsum Babcock & Wilcox Nuclear Power Generation Division l Suite 220 1700 Rockville Pike, Suite 525 Rockville, Maryland 20852

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